[Input] display issues

[Mangatt]

I have noticed that [Input] has some display issues.

• This is not a v0.x issue.
• I have searched the issues of this repository and believe that this is not a duplicate.

Using https://material-ui.com/demos/text-fields/ :

• There is visible line through outlined label [Input] on hiDPI screen in Chrome 69
• There is sometimes visible scrollbar on multiline [Input] on hiDPI screen in Chrome 69
• Textarea is not growing when you insert just empty lines in Edge 42

[oliviertassinari]

There is visible line through outlined label [Input] on hiDPI screen in Chrome 69

It's a duplicate of #13297.

Textarea is not growing when you insert just empty lines in Edge 42

It's a duplicate of #12172.

There is sometimes visible scrollbar on multiline [Input] on hiDPI screen in Chrome 69

Do you have an isolated reproduction?

[nicolasiensen]

There is sometimes visible scrollbar on multiline [Input] on hiDPI screen in Chrome 69

Were you using a wheeled mouse? I know that the scrollbar behaves differently when you are using a trackpad vs. a wheeled mouse.

[Mangatt]

@oliviertassinari There you go: https://codesandbox.io/s/z2l82y6ylp

Behavior is actually not random, it depends on number of lines:

• only 1 line: ok
• 2, 3, 7, 8 lines: scrollbar
• 4, 5, 6, 9, 10, 11 lines: ok

After first line, pattern is 2 lines with scrollbar and 3 lines without, then repeat.

@nicolasiensen It's not about mouse, it behaves like that during text entry.